Hi Big_Mak,
OK thanks for clarifying. In the first image you are creating a half section view (horizontal segment is exactly perpendicular to the vertical). In the 2nd image, because the vertical line has been rotated, it is an aligned section. If the horizontal segment was rotated up at exactly the same angle, you'd see a half section view projected perpendicular from the more vertical segment. You can see this if you create the original section in the fist image and then use the Rotate command on the secttion line instead of grip-editing it.
That said, we do currently have some known limitations in this area and have plans to enhance tracking during section line creation and editing. Right now it is not possible to acquire points which are not orthogonal and extend along (or perpendicular) to that geometry or the last section line segment.
Not sure that answers your question, but currently the short answer would be yes this is expected, but we do have plans to enhance this behavior.
Thanks,
Chris